Protea glen mall Pick 'n pay bad customer care

I had the worst experience at Protea glen mall Pick 'n pay today around lunch time, so the cue for the tills were long, and i saw a shorter cue just next to the long cue and asked the person in front of me if it's for the less than 10 items and they agreed and i followed along just right behind them, the woman went through and was assisted just as i was about to go to the till a woman by the name of Salome working at the Pick 'n pay stopped me and said the line was for the stuff of the protea mall only, i then asked why isn't there a notice or somebody telling us or something, she gave me the worst attitude looking at me from my shoes right up to my hair and said she doesn't know (rolling her eyes) i must go start the long line, and mind you like everybody else I'm at work i need to be at work at a certain time, had there been a notice i would have avoided the area or had she tried to assist in the right way and/or apologised maybe i wouldn't be so furious, she gave me the worst attitude, it hurt me and i hope nobody else had the same experience as me today.